CN1993914A - Method and apparatus for minimizing co-channel interference by scrambling - Google Patents
Method and apparatus for minimizing co-channel interference by scrambling Download PDFInfo
- Publication number
- CN1993914A CN1993914A CNA2005800267100A CN200580026710A CN1993914A CN 1993914 A CN1993914 A CN 1993914A CN A2005800267100 A CNA2005800267100 A CN A2005800267100A CN 200580026710 A CN200580026710 A CN 200580026710A CN 1993914 A CN1993914 A CN 1993914A
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- Prior art keywords
- cochannel
- sequence
- stem
- scrambling
- frame
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/1858—Arrangements for data transmission on the physical system, i.e. for data bit transmission between network components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
- H04J13/102—Combining codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Radio Relay Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
Description
Rn(i) | Input (i) | Output (i) |
0 | I+jQ | I+jQ |
1 | I+jQ | -Q+jI |
2 | I+jQ | -I-jQ |
3 | I+jQ | Q-jI |
000000000000000000000000000000 017441442073372365611356321532 265426356443536276670211411740 252227554465164204771634274377 776172163477102134531155722252 723677114643600327625322063065 530630226523726003613144773627 414501457322433557672435620361 436023561273755661226751405141 152764667421361462275664347537 765716133572231436421733137254 475506033002140572621247123361 436624712423275014200660305571 546402134245534407404410536306 306365041101701165512164201315 417456000231306236305251032641 413260452506362306462000351741 |
Cochannel # | Seed X | Sequence # (n) | |
The | Hexadecimal | ||
1 | 1 | 00001 | 0 |
2 | 42348 | | 189063 |
3 | 55204 | | 153751 |
4 | 57415 | | 238776 |
5 | 74129 | 12191 | 62994 |
6 | 88022 | | 95552 |
7 | 111487 | | 2553 |
8 | 112625 | | 227369 |
9 | 123876 | | 26392 |
10 | 137205 | | 214455 |
11 | 145515 | | 51921 |
12 | 151841 | 25121 | 208647 |
13 | 166238 | | 27314 |
14 | 174767 | 2AAAF | 104754 |
15 | 183101 | | 76683 |
16 | 186848 | | 146239 |
17 | 188914 | | 96364 |
Cochannel # | Seed X | ||
The | Hexadecimal | ||
1 | 13 | | |
2 | 53 | 00035 | |
3 | 70 | 00046 | |
4 | 74 | | |
5 | 126 | 0007E | |
6 | 159 | | |
7 | 179 | 000B3 | |
8 | 216 | 000D8 | |
9 | 236 | | |
10 | 238 | 000EE | |
11 | 244 | 000F4 | |
12 | 262 | 00106 | |
13 | 278 | 00116 | |
14 | 536 | 00218 | |
15 | 628 | 00274 | |
16 | 737 | | |
17 | 771 | 00303 |
Claims (29)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58341004P | 2004-06-28 | 2004-06-28 | |
US60/583,410 | 2004-06-28 | ||
US58565404P | 2004-07-06 | 2004-07-06 | |
US60/585,654 | 2004-07-06 | ||
US11/009,333 US7672285B2 (en) | 2004-06-28 | 2004-12-10 | Method and apparatus for minimizing co-channel interference by scrambling |
US11/009,333 | 2004-12-10 | ||
PCT/US2005/018564 WO2006007204A2 (en) | 2004-06-28 | 2005-05-26 | Method and apparatus for minimizing co-channel interference by scrambling |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101678428A Division CN101834653B (en) | 2004-06-28 | 2005-05-26 | Method and apparatus for minimizing co-channel interference by scrambling |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1993914A true CN1993914A (en) | 2007-07-04 |
CN1993914B CN1993914B (en) | 2010-06-23 |
Family
ID=35505558
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005800267100A Active CN1993914B (en) | 2004-06-28 | 2005-05-26 | Method and apparatus for minimizing co-channel interference by scrambling |
CN2010101678428A Active CN101834653B (en) | 2004-06-28 | 2005-05-26 | Method and apparatus for minimizing co-channel interference by scrambling |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101678428A Active CN101834653B (en) | 2004-06-28 | 2005-05-26 | Method and apparatus for minimizing co-channel interference by scrambling |
Country Status (9)
Country | Link |
---|---|
US (3) | US7672285B2 (en) |
EP (1) | EP1766818B1 (en) |
JP (1) | JP4777982B2 (en) |
KR (1) | KR100877241B1 (en) |
CN (2) | CN1993914B (en) |
AT (1) | ATE539507T1 (en) |
CA (1) | CA2572431C (en) |
HK (2) | HK1104394A1 (en) |
WO (1) | WO2006007204A2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103354533A (en) * | 2007-10-04 | 2013-10-16 | 高通股份有限公司 | Scrambling sequence generation in a communication system |
CN101272232B (en) * | 2008-05-14 | 2013-11-06 | 中兴通讯股份有限公司 | Scrambling method of physical mixing retransmission indication channel |
WO2014179988A1 (en) * | 2013-05-10 | 2014-11-13 | 上海贝尔股份有限公司 | Method and device for discovering neighbor in device-to-device communication |
CN107656758A (en) * | 2016-07-25 | 2018-02-02 | 中兴通讯股份有限公司 | Reduce crosstalk method, device and system |
CN111247773A (en) * | 2017-04-03 | 2020-06-05 | 力士塔有限公司 | Method and apparatus for ultra-secure last-in-the-road communication |
Families Citing this family (18)
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US8213553B2 (en) * | 2004-04-12 | 2012-07-03 | The Directv Group, Inc. | Method and apparatus for identifying co-channel interference |
US7460832B2 (en) * | 2004-04-12 | 2008-12-02 | The Directv Group, Inc. | Methods and apparatuses for minimizing co-channel interference |
US7961880B2 (en) * | 2005-08-26 | 2011-06-14 | The Directv Group, Inc. | Methods and apparatuses for determining scrambling codes for signal transmission |
US7161988B2 (en) * | 2004-04-12 | 2007-01-09 | The Directv Group, Inc. | Method and apparatus for minimizing co-channel interference |
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CN114944866B (en) * | 2022-05-25 | 2023-07-11 | 中国电子科技集团公司第十研究所 | Airborne comprehensive multimode communication system and design method |
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CN103354533A (en) * | 2007-10-04 | 2013-10-16 | 高通股份有限公司 | Scrambling sequence generation in a communication system |
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CN111247773A (en) * | 2017-04-03 | 2020-06-05 | 力士塔有限公司 | Method and apparatus for ultra-secure last-in-the-road communication |
CN111247773B (en) * | 2017-04-03 | 2022-05-17 | 力士塔有限公司 | Method and apparatus for ultra-secure last-mile communication |
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US8325699B2 (en) | 2012-12-04 |
CN101834653A (en) | 2010-09-15 |
CN101834653B (en) | 2013-10-16 |
US7672285B2 (en) | 2010-03-02 |
US9060369B1 (en) | 2015-06-16 |
EP1766818A2 (en) | 2007-03-28 |
US20100128816A1 (en) | 2010-05-27 |
ATE539507T1 (en) | 2012-01-15 |
EP1766818B1 (en) | 2011-12-28 |
KR100877241B1 (en) | 2009-01-07 |
CA2572431A1 (en) | 2006-01-19 |
JP4777982B2 (en) | 2011-09-21 |
HK1104394A1 (en) | 2008-01-11 |
US20050286405A1 (en) | 2005-12-29 |
JP2008504789A (en) | 2008-02-14 |
WO2006007204A2 (en) | 2006-01-19 |
HK1148129A1 (en) | 2011-08-26 |
CN1993914B (en) | 2010-06-23 |
CA2572431C (en) | 2013-07-09 |
WO2006007204A3 (en) | 2006-07-06 |
KR20070036153A (en) | 2007-04-02 |
EP1766818A4 (en) | 2009-05-27 |
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